Locomotive



J. BUCHLI LO COMOTIVE Sept. 24, 1929;

' Filed Sept. 19 1927 2 Sheets$heet J. BUCHLI LOCOMOTIVE Sept. 24, 1929.

2 Shets-Shee? 2 Filed Sept. 19, 1927 //VVEN TOR:

Patented Sept. 24, 1929 UNITED STATES PATENT OFFICE LOCOMOTIVEApplication filed September 19, 1927, Serial No. 220,510, and in GermanyOctober 27, 1528.

The subject matter of the present invention is a locomotive comprisingtwo bogies connected with each other by means of combined draw andbuffer-gear and a main frame on which the driving motors (oil engines,benzine engines or electric motors) are rigidly fixed. The main framecarries the body in which the drivers cabs are arranged.

The bogies are provided with at least two driving axles coupled by meansof parallel rods and with carrying axles, if required, and support thetransmission gearings mounted in the frame of the bogies and consistingof at least one pair of spur gear wheels and one pair of bevel gearwheels. Further change speed gears are provided which may be mounted onthe main frame or on the frames of the bogies. To ensure proper drivingconditions also when the locomotive negotiates curves between the partsmounted on the frames of the bogies and the parts mounted on the mainframe Oardan shafts with universally movable couplings are interposed.

Two constructional examples of the subject matter of the presentinvention are diagrammatically illustrated on the accompanying drawings,in which 7 Fig. 1 shows in elevation a first constructional example ofthe locomotive,

Fig. 2 shows in a plan view the combined draw and buffer-gear,

Fig. 3 shows in an axial section a detail of Fig. 2, and Fig. 4; is anelevation view of a second constructional example.

Referring to Fig. 1, the bogies I and II are each provided with twodriving axles 1 coupled with each other by means of parallel rods 2, anda carrying axle 3. On these axles the bogie frames 4 and 4 respectivelyare supported through the intermediary of springs. In the bogie framesthe pair of spur gear wheels 5, 6 is mounted; the crank shaft 7 on whichthe wheel is fixed is connected by means of connecting rods 8 to thecoupling rods 2.

On the shaft 9 is mounted a bevel gear wheel 10 or 10 respectivelycooperating with a further bevel gear wheel 11 or 11 respectively whichis also mounted in the frame 4 or 4 respectively. The frames 1, f of thetwo bogies are connected to each other by the draw and buffer-gearillustrated in detail in Figs. 2 and 3 and consisting of a rigidcoupling member 12 and a diagonally arranged coupling member 12 providedwith a coil spring 19 adapted to permit a relative displacement of thebogies when the vehicle negotiates curves and to return said bogies intotheir middle position on a straight portion of the track. Thearrangement is such that the spring 19 is operative when the diagonallydisposed rods approach each other or move away from each other. A moredetailed description of this draw and buffergear is deemed unnecessaryas it does not form part of the present invention.

The main frame 13 rests by means of pivot pins and sockets 14:, 14 onthe frames 4. and i of the bogies and is secured in a known manner bylateral supports against tilting. The main frame is covered by the body15 in which the drivers cabs are provided and the auxiliary machines arehoused.

On the main frame 13 the oil motors 16, 16 are mounted and rigidlyconnected to the latter, likewise the change speed gears 17, 17.

The connection between the motors 1G, 16

placed on the main frame 13 or between the change speed gears 17, 17'respectively and the transmission gearings 5, 6, 10, 11 or 5, 6, 10, 11is effected by means of Oardan shafts 18, 18. The latter transmit theturning moment of the motors to the pairs of bevel wheels 11, 10 and 11,10 respectively and thereby to the crank shaft 7 and the driving axlesconnected thereto.

The constructional example illustrated in Fig. 4 differs from theexample described above inasmuch as the change speed gears 17 and 17 aresupported by the frames f and 4 of the bogies instead of by the mainframe 13. The Oardan shafts 18 and 18 are in this case inserted betweenthe motors 16, 16 and the change speed gears 17, 17.

pivots, two driving engines mounted on said main frame, driving wheelson said bogies, a transmission gearing and a lay shaft mounted on theframe of each bogie, a driving gear including coupling rods andconnecting rods interposed between each trans mission gearing and thedriving wheels of a bogie, change speed gears, and Cardan shaftsinterposed between that part of the driving means arranged on the mainframe and that arranged on the frames of the bogies.

2. A locomotive comprising in combination, a main frame, two bogieshaving frames supporting said main frame by means of pivots, two oilengines mounted on said main frame, driving wheels on said bogies, atransmission gearing and a lay shaft mounted on the frame of each bogie,a driving gear including coupling rods and connecting rods interposedbetween each transmission gearing and the driving wheels of a bogie,change speed gears mounted on the frames of said bogies, and a Cardanshaft interposed between each engine and its change speed gear.

3. A locomotive comprising in combination, a main frame, two bogieshaving frames supporting said main frame by means of pivots, two drivingengines mounted on the main frame symmetrically with respect to thetransverse central plane of the main frame, atransmission mechanismforan engine mounted on each bogie, bogie driving mechanism operated fromeach transmission mechanism and a flexible driving connection betweeneach engine and its pertaining trans mission mechanism.

4. A locomotive comprising in combination, a main frame, two bogiessupporting said main frame by means of pivots, means pivotallyconnecting the bogies together, two internal combustion engines mountedon the main frame one over each bogie, a transmission mechanism on eachbogie, bogie driving mechanism operated from each transmission mechanismand a universally movable driving connection between each engine and itspertaining transmission mechanism.

In testimony whereof, I have signed my name to this specification.

JACOB BUGI-ILI.

